bellefetjille



(No Model.) 8 Sheets-Sheet l.

0. BBLLEPEUILLE. SEWING MAGHINE- No. 549,593. PatntedlNov. 12, 1895.

AN new BJSRANAM. PHUTO-LITHQWASNINGTDN. D C

'8 Sheets-Sheet 2.

(No Model.)

0. BELLEFEUILLE.

SEWING MACHINE.

No. 549,593. Patented Nov. 12,1895.

AN BREW BJERAHAM. PHOTOMTHQWASMNGMN. c.

- ssne'etpsneetyi.

(No Model.) v I O. BELLEFEUILLE.

SEWING MACHINE. 7 No. 549,593. g Patented'Nov. 12,1895.

fizz altar AN DREW BGRAHAM. PHOTO'LITHQWASHI NGTONJIC.

{No-Model.) Sheets Sheet 5.

' BELLEFEUILLE.

SEWING MACHINE Patented Nov. 12, 1895.

( No M od e1 I 8 Sheet s -Sheet 6.

BELLEFEUILLE.

SEWING MAGHINE No. 549,593. Patented Nov. 12-, 1895.

"mun" AN DREW BLRAHAM. FHUYO-LITHOMASMINHOMQQ 8 Sheets-Sheet 7.

(No Model.)

0. BBLLEFEUI LLE. SEWING MACHINE.

No. 549,593. Patented Nov. 12, 1895.

llllll \IIIIM Hlll'lH AN DREW BJSIMHAM. PEOTOUTHQWASHINGTON. D C

(H6 Model.) s Sheets-Sheet 8.

0. BELL'EFEUILLE.

- I SEWING. MACHINE. No. 549,593. PatentedNov. 12, 18 95.

UNITED STATES PATENT OFFICE.

OLIVIER B ELLEFEUILLE, OF MONTREAL, CANADA.

SEWING-MACHINE.

SFECIFIGATION forming part of Letters Patent No. 549,593, dated November12, 1895.

Application filed June 22, 1894. Serial No. 515,422. (No model.)

To all whom, it may concern.-

Be it known that I, OL IVIER BELLEFEUILLE,

a citizen of the Dominion of Canada, residing at the city of Montreal,in the district of Montreal and Province of Quebec, Canada, haveinvented certain new and useful Improvements in Sewing-Machines; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention has reference to that class of sewing-machines employed byshoemakers, and has for its object to provide a lock-stitch wax-threadsewing-machine adapted to stitch uppers to soles of turned boots orshoes and to stitch welts to uppers and inner soles of welted boots orshoes, as explained hereinafter.

'Referring to the drawings, similar letters refer to similar partsthroughout the several views.

Figure 1 is a side view showing the shuttle. Fig. 2 is a view of theother side of my machine. Fig. 3 is a rear view. Fig. 4 is a front view.Fig. 5 is a plan view. Fig. 6 is a section of my shuttle. Fig. '7represents a view of the needle and holding-hook and operatingmechanism. Fig. 8 is an elevation of my holding-hook. Fig. 9 is a frontview of same. Fig. 10 is a plan view of my holding-hook, Fig. 11 being afront view of same. Fig. 12 is a section on line X X of Fig. 10. Fig. 13is a longitudinal section of piece A of Fig. 4:. Fig. 14 is a horizontalview of my threadgiving-out device. Fig. 15 is a side view of thedevices for holding and feeding the thread. Fig. 16 is a front view ofsame. Fig. 17 is a section on line Z Z of Fig. 15. Fig. 18 is a verticalsection of my shuttle. Fig. 19 is an elevation of my shuttle; and Figs.20, 21, and 22 are perspective views showing the different operationsperformed in making the stitch.

B is a suitable support, onto which is securely joined a suitable frameI), provided with any suitable number of brackets 17, which serve tosupport the main driving-shaft O, to which a rotary motion is impartedin any suitable way. Onto this shaft 0 are mounted the three cam-wheelsD, E, and F, which are provided with cam-grooves to produce the 7several functions explained hereinafter.

The curvedneedle G is secured to the head 9, which in turn is mounted onthe shaft g, which passes through the frame I), as shown in Fig. 14. Thehead 9 is held in position on the crank g by means of the projectingguidebar g which is firmly secured to the crank the head g slidingfreely along the guidebar g when made to do so by the shaft g, which isjoined at g to the lever 9 which is pivoted at 9 Fig. 2, and providedwith the trundle-roll 9 (shown in pointed lines in Fig. 2,) which runsin the cam-groove e of the camwheel E, this cam-gr0ove e imparting tothe 6 5 lever g and thus to shaft g, a vibratory motion, causing theneedle G, with its head g, to move out in the direction indicated by thearrow in Fig. 14, and thence back into the position shown in the sameView, thus making the needle G act as a loop-spreader, the vibratorymotion being so timed as to produce this.

The mechanism giving motion to the needle consists of the levers F and Fthe latter being provided with the trundle-roll F and pivoted at F tothe frame b of the machine, the trundle-roll F running into thecamgroove F of the cam-wheel F. However, there is nothing new in this;but to the lever F I attach the arm 71 of the sleeve H, (shown on Figs.7, 8, 9, 10, and 11,) to the end of which is secured my holding-hook hin any suitable manner, this sleeve H being made to'turn one-quarterturn when the arm h pushes in the direction if, Fig. 7, for as soon asthe sleeve H butts against the stop h the projection 72 which is firmlyjoined to the arm h and which butts against the spring k forces thesleeve H to make one-quarter of a turn by 0 sliding along the slot hthis making the hook h take theposition shown in Fig. 9, while when thearm his pulled back or in a reverse direction to that shown at h thehook h is made to turn up by the spring 71 as shown 5 in Fig. 11, andthe sleeve, with the hook h, is pulled somewhat back, so that it is outof the way of the needle. The object of this holding-hook h is to catchone side of the loop as pulled through by the needle G and hold IOO itthere while the needle carries the other side out far enough to allowthe spring-hook I on the shuttle Z to catch it, the whole as shown I inFigs. 21 and 22. The advancing oft-he holding-hook h and its quarterdownward motion are of course timed to correspond with the end of thebackward movement of the needle and when the latter is ready to start onits loop-spreading motion, the sleeve II sliding along the groove b madeinto the frameb of the machine for it.

My shuttle '1'. is practically made of two sprocket-wheels t" andsecured to one another at a suitable distance apart by pieces i, whichcan be cast with them or not, the whole being made as shown on thedrawings, and is held in position by means of a suitable sprocket chain'1", which laps sufficiently around it to secure it as shown in Fig. 1,this chain 1'" passing over the double sprocketwheels "1"", 1', i and ithe latter being secured to the wheel i, which is given a rotary motionby means of the spur-wheel 2' which is provided with teeth on itsperiphery, which enter corresponding recesses on the periphery of thewheel '2'. The two latter wheels, however, are oval in shape, so as totime the movement of the shuttle in such a way as to allow of the freeaction of the take-up by delivering the loop at the right time. Thespurwheel 1' is mounted and firmly secured to the main driving-shaft C.

To hold the chain i" always firmly pressed against the shuttle, anysuitable number of loose rollers i are inserted.

My shuttle i, Fig. 6, is provided with a cover i which has a centralopening through which the hollow projection 1' of the top of the spooli, which contains the waxed thread, passes, this cover 1' rotating withthe shuttle; but the spool 1', which is provided with an opening in itsbottom, so that the projection 1' of the shuttle 'i can pass through it,and thus keep it into position, is stationary and does not turn with theshuttle. The shuttle is provided with the piece which has a suitablespring i to give the necessary tension to the thread. J is my looper,differing from these now in use onlyby having a ball-joint at j, andthus having the lever j in two instead of one piece, it being operated,however, in the ordinary way by means of the trundle-roll 7' running inthe camgroove f of the cam-wheel F, and made to cause the looper J tomake a circular vibration from left to right, as shown by the arrow inFig. 20, so as to lap the upper thread over the needle, which isprovided with a slanting side groove for this purpose, and thus holdsthe thread more firmly than those now in use.

My take-up consists of the wheel K,mounted on the shaft la, which is journaled in a bracket 7;, Figs. 16 and 17, and which is provided withseveral arms K provided with guide-pulleys 7:3 for the upper thread.This wheel K, and consequently arms 7:, is made to partly rotate bymeans of the wheel 7a, which is secured to the same shaft as the wheel Kand accessories, and which is provided with recesses 70 on itsperiphery, into which project teeth 7:, which are secured to the piece[0 sliding over the roller 7;, this piece 70 being joined to the end ofthe lever k Fig. 15, which is pivoted at 7.3-", and provided with atrundle-roll k which runs in a suitable cam-groove on the cam-wheel Fand is so arranged as to push the piece k out in the direction shown bythe arrow in Fig. 15 just in time to pull up the upper thread, thismotion of course rotating the wheel K and accessories in the direction70 they immediately being rotated in the opposite direction of course bythe same piece 70 However, to be able to use this take-up the upperthread must be secured before its passage over the guide-pulleys 70", asotherwise this rotating back and pulling on the thread would only resultin pulling more of it out of the receptacle containing it, so that tosecure the same I make use of adevice composed of the groox'cd wheel L,over which the upper thread passes, as shown on the drawings,and onellangc of the wheel L is provided with teeth, so as to form aratchet-wheel, as shown in Figs. 15 and 10, this wheel L being loose 011the end of the shaft 7;, as shown in Fig. 17. Now to the ordinary backgage M, provided with the ordinary loeking device 971, I secure anupright piece I, provided with a small projection Z at its upperextremity, the latter sliding into a long slot I, placed in the leverZ", which is pivoted at Z to the frame of the machine and at Z to theupright piece Z, which has its other extremity joined to the doublelever Z and to the slotted piece i which slides on a projection Z,secured to the frame of the machine, the upper end of the double lever Zbeing pivoted to the piece 1 which is connected to the piece Z bysuitable guides, so that it can slide backward or frontward on the piece1, its lower extremity being provided with a shoulder Z which bearsagainst a spring Z which is secured to the piece I, the latter beingplaced on top of the lever Z, as shown on Figs. 15 and. 16, the spring Zserving as a cushion for the piece Z. The lever Z is pivoted at Z to theframe of the machine and has its other extremity provided with thetrundle-r0111", which runs on the periphery of the cam-wheel E, which isprovided with the depression e, into which the trundle-roll Z is pulledby the spring 1*, this having for effect to let the pieces 1 and 1 dropsomewhat, the trundle-roll Z rising out of the depression e immediatelyand raising the said pieces into the position shown. Now to secure thethread for the take-up, and also to furnish the exact amount of threadrequired for each stitch and for each thickness of between substance, mydevice acts as follows: The lower thread passing over the wheel L, asshown, passes between the bottom of the groove in the latter and the topof the piece Z which is shaped as shown. on Fig. 1G-that is, V-like-soas to introduce itself into the groove, and it is evident that when thispiece Z is pressed upward by the trundle-roll Z and lever I it jams thethread against the bottom of the groove on the wheel L, and as the pieceZ is provided with the pawl Z the Wheel L cannot slip out of position bythe take-up K pulling out the thread. However, when the piece Z drops itdoes not go down far enough to disengage the pawl Z so that when thetrundle-roll Z secured to the lever Z which is pivoted at Z to the frameof the machine, passes over the projection e on the cam-wheel E the endZ of the lever Z strikes against the slotted piece Z and thus forces thepiece Z and consequently piece Z ahead, thus pushing the wheel L arounda certain distance in the direction of the arrow the piece Z immediatelyretaking its position under the influence of the spring Z and thepartial rotating of the wheel L giving out a certain amount of thread.Now it can easily be seen that this arrangement also regulatesautomatically the amount of thread required for each thickness ofbetween substance, for as the piece Zis secured to the ordinary backgage M the thicker the between substance and upper or between substanceupper and welt the closer toward the point Z will the projection Z be,

' and consequently the higher the point Z and the closer the end of theslotted piece I to the end of Z of the lever Z so that the latter shallpush the piece Z and consequently wheel L, much farther, thus givingmore thread, the reverse taking place with a thinner thickness to sewthrough.

My feeding arrangement consists in the feeding-dog P, made as shown inFig. 4: and

secured to the oscillating head A at p, where it is slotted out, so asto permit its upward and downward movement, which is communicated to itby means of the lever 19, pivoted at p to the bracket p and provided atits other extremity with a trundle-roll 19 which passes over thecam-wheel E, the latter giving the feeding-dog its upward and downwardmovement, while its side movement is imparted to it by means of the headA, which can slide over the piece a in the direction indicated by thearrows in Fig. 13, but can oscillate only around the shaft a, which,with the piece a, is joined to the piece a secured on the frame I) inany suitable way, the lever a giving the piece a this side motion, ascan be readily seen on the drawings, by being pivoted at a, as shown inFig. 5, and having atrundle-roll a running in the cam-groove d of thecamwheel D. The lever a joined to the head A, is provided with thetrundle-roll a which passes over the cam-wheel E and causes the head Aand ordinary channel-guard N to incline inward in the directionindicated by the arrow n on Fig. 2; but this channel-guard N does notfeed the work, it only serving to firmly hold the boot between the backgage and itself while the needle is penetrating through the betweensubstance, its point of course keeping the channel well open.

My reason for adopting a separate dog P to feed the work is simply this:that when the work is fed by the channel guard N the between substanceis sometimes injured, while with my device the dog P sticks its pointinto the sole itself and there is no fear of injuring the sole in anyway, it helping the channel-guard to hold the work. Of course all theselevers and earns must be so timed as to advance the boot when the needlehas retracted and firmly secure it when it is going through.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

1. I11 a sewing machine the combination of a shuttle i, composed of twosprocket wheels c" and 2' separated by pieces 2' top piece 1, spring 1'and spring hook I, set in motion by the sprocket chain i kept inposition by means of a suitable number of rollers i and passing over thedouble sprocket wheels 1' 1' 2' and "i propelled by wheel 2' and spurwheel with a curved needle G acting as a loop spreader, the holding hookit and looper J having the ball joint j, substantially as described andfor the purposes set forth.

2. In a sewing machine the combination of an ordinary curved needle G,secured to a head 9 oscillating around the shaft g through the crank 9which is provided with the projecting guide bar g and set in motion bymeans of the ordinary mechanism, through lever F, and acting as aspreader by being pushed out by means of lever g trundle roll 9 and camgroove e, with the holding hook h worked by the sleeve H, having theslot h and spring h through the projection h, lever F cam groove F andstopper 7L3, all substantially as described and for the purposes setforth.

3. In a sewing machine the combination of atake up composed of the wheelK, having the arms 70 provided with the guide wheels it all mounted on ashaft 7:, with the wheel 10 having the recesses 70 on its periphery intowhich work the projections 76 of the piece 10 set in motion by means ofthe lever 70 and trundle-roll 10 with a thread giving device worked bythe back gage and composed of the grooved wheel L, having one flange ofthe groove provided with teeth so as to form a pawl wheel, sliding pieceZ provided with the ratchet Z piece Z springs Z and Z lever Z havingspring Z and trundle-roll Z depression e, double lever Z lever Z slottedlever 1 piece Z, which is provided with the projection Z, and joined tothe back gage M, slotted piece Z sliding on the projection Z piece Zprovided with trundle-roll Z projection e and the back gage M, allsubstantially as described and for the purposes set forth.

4. In a sewing machine, the combination, with the oscillatory crank gprovided with a laterally-projecting guide-bar; of the head, forcarrying the needle, slidable on the said guide-bar; the curved needleand means for oscillating the same; the shaft supporting the said headconcentric with the said crank 5 and driving mechanism operating toslide the said shaft and head back and forth laterally, substantially asset forth.

5. In a sewing machine, the combination, with the oscillatory crank 9and the oscillatory and laterally-movable head, for carrying the needle,operatively connected with the said crank; of the levers F and F, theroll F and the cam F, operating to oscillate the said crank and head;the slidable and revoluble sleeve II, and the holding hook h; anddriving devices, for operating the said sleeve and hook, connected tothe said lever F substantially as set forth.

6. In a sewing machine, the combination,

with a shuttle having sprocket wheels on its periphery; of a sprocketchain engaging with the said sprocket wheels above and below theshuttle, the sprocket wheels i 1', i, and i operating to support anddrive the said chain; and a pair of oval toothed-wheels operativelyconnecting the said sprocketwheels and chain with the driving shaft,substantially as set forth.

7. In a sewing machine, the combination, with a take-up wheel K mountedon a shaft and provided with a plurality of projecting arms eachcarrying a guide pulley for the upper thread; of a .wheel secured to thewheel K and provided with recesses in its periphery, a slidable barprovided with teeth engaging the said recesses, a pivoted lever foroperating the said bar, a roll projecting from the said pivoted lever,and a cam provided \n'tlia groove engaging with the said roll,substantially as set forth.

8. In a sewing machine, the combination, with the grooved wheel Lprovided with ratchet teeth on its periphery; of avertically andlongitudinally slidable piece operating to clamp the upper thread in thegroove of the said wheel; a spring-actuated pawl pivoted to the saidpiece and engaging with the said ratchet teeth; and two separateactuating mechanisms, one operating to raise the said piece, and theother to slide it longitudinally thereby partially revolving the saidwheel, substantially as set forth.

9. In a sewing machine, the combination, with the grooved wheel Lprovided with ratchet teeth; of the pivoted lever Z provided with anoperating spring and a roll; a cam provided with a recess for the saidroll to drop into; a spring-supported guide piece carried by the saidlever; the thread clamping piece Z slidable longitudinally in the saidguide piece and provided with a spring-aetuated pawl engaging with thesaid ratchet teeth; and tappet mechanism operating to slide the saidpiece 1 longitudinally, thereby partially revolving the said wheel,substantially as set forth.

10. In a sewing machine, the combination, with the grooved wheel Lprovided with ratchet teeth; and the vertically-movable piece Z forclamping the thread, provided with a spring-actuated pawl engaging withthe said ratchet teeth; of the arms Z and Z pivotally connected to thepiece Z a spring for moving the said piece longitudinally in onedirection; and a pivoted tappet lever for moving the said piece in theopposite direction, substantially as set forth.

11. In a sewing machine, the combination, with the back gage M, and thepiece Z secured thereto and provided with a lateral projection; of apivoted lever provided with a slot engaging the said projection; theupright piece, and the arms Z and Z pivoted to the said lever; theslidable piece Z pivoted to the arm 1 and provided with aspring-aetuated pawl; the grooved wheel L provided with ratchet teethand engaging with the last said piece and its pawl; and the pivotedtappet lever P", the distance between the lever Z and the arm Z andconsequently the amount of revolution of the wheel L and the feed of thethread, being regulated by the position of the said back gage,substantially as set forth.

12. In a sewing machine, the combination, with the oscillatory head A,and the parts a, a, a supporting the said head, said head being slidableon the part a and pivoted on the part a; of the channel guard N carriedby the said head; the feed dog P provided with an elongated pivot holeand pivoted to the said head and oscillated thereby; and driving devicesfor reciprocating the said feed dog in a vertical direction,substantially as set forth.

In testimony whereof I have affixed my signature in presence of twowitnesses.

OLIVIER BELLEFEUILLE.

\V itnesses:

JAMES LAURIN, 1*. X. MALoY.

